公开(公告)号：US20110253525A1

公开(公告)日：2011-10-20

申请号：US13171243

申请日：2011-06-28

Applicant: A. David Johnson ,  Valery V. Martynov ,  Vikas Gupta ,  Arani Bose

Inventor： A. David Johnson ,  Valery V. Martynov ,  Vikas Gupta ,  Arani Bose

IPC: C23C14/35

CPC classification number: A61F2/82 ,  A61F2/91 ,  A61F2/915 ,  A61F2002/91533 ,  A61F2002/9155 ,  C22F1/006 ,  C23C14/0005 ,  C23C14/14

Abstract: A thin film device, such as an intravascular stent, is disclosed. The device is formed of a seamless expanse of thin-film (i) formed of a sputtered nitinol shape memory alloy, defining, in an austenitic state, an open, interior volume, having a thickness between 0.5-50 microns, having an austenite finish temperature Af below 37° C.; and demonstrating a stress/strain recovery greater than 3% at 37° C. The expanse can be deformed into a substantially compacted configuration in a martensitic state, and assumes, in its austenitic state, a shape defining such open, interior volume. Also disclosed is a sputtering method for forming the device.

Abstract translation: 公开了一种薄膜装置，例如血管内支架。 该装置由无定形的薄膜形成（i）由溅射的镍钛诺形状记忆合金形成，其以奥氏体状态限定具有0.5-50微米厚度的开放内部体积，具有奥氏体光洁度 温度低于37℃。 并且在37℃下表现出大于3％的应力/应变恢复。该膨胀物可以以马氏体状态变形为基本上压实的构造，并且以其奥氏体状态呈现限定这种敞开的内部体积的形状。 还公开了一种用于形成该器件的溅射方法。

公开(公告)号：US07763342B2

公开(公告)日：2010-07-27

申请号：US11396234

申请日：2006-03-31

Applicant: A. David Johnson

Inventor： A. David Johnson

IPC: B32B3/26

CPC classification number: B81B3/0072 ,  A61F2/2403 ,  A61F2/82 ,  A61F2210/0014 ,  B81C2201/0181 ,  B81C2201/038 ,  Y10T428/24479

Abstract: A thin film device and fabrication method providing optimum tear resistance. A thin film layer is formed with a first and second of rows of holes. The holes in each row are spaced-apart along an axis which extends along an edge of the layer. The holes in one row are in overlapping relationship with adjacent holes in the other row. The holes have a diameter which is sufficiently large so that an imaginary line extending perpendicular from any location along the edge will intersect at least one hole, thus preventing further propagation of any tears or cracks which start from the edge.

Abstract translation: 薄膜器件和提供最佳抗撕裂性的制造方法。 薄膜层形成有第一排和第二排孔。 沿着沿着该层的边缘延伸的轴线，每行中的孔间隔开。 一排中的孔与另一排中的相邻孔重叠。 这些孔具有足够大的直径，使得从沿着边缘的任何位置垂直延伸的假想线将与至少一个孔相交，从而防止从边缘开始的任何撕裂或裂纹的进一步传播。

公开(公告)号：US20090171294A1

公开(公告)日：2009-07-02

申请号：US11041185

申请日：2005-01-24

Applicant: A. David Johnson ,  Michael Bokaie ,  Valery Martynov

Inventor： A. David Johnson ,  Michael Bokaie ,  Valery Martynov

IPC: A61M25/09 ,  C22F1/08 ,  F16F1/14 ,  F16F1/44 ,  F16F1/46 ,  F16F1/18

CPC classification number: C22C9/01 ,  A61L31/022 ,  A61L31/088 ,  A61L31/10 ,  A61L31/14 ,  A61L2400/16 ,  A61M25/00 ,  A61M2025/09141 ,  C22F1/006 ,  C30B15/00 ,  C30B29/52 ,  F16F1/021 ,  F24S30/20 ,  F24S2030/11 ,  F28D15/0241 ,  H01H37/323 ,  Y02E10/47

Abstract: Devices and methods of making devices having one or more components made of single crystal shape memory alloy capable of large recoverable distortions, defined herein as “hyperelastic” SMA. Recoverable Strains are as large as 9 percent, and in special circumstances as large as 22 percent. Hyperelastic SMAs exhibit no creep or gradual change during repeated cycling because there are no crystal boundaries. Hyperelastic properties are inherent in the single crystal as formed: no cold work or special heat treatment is necessary. Alloy components are Cu—Al—X where X may be Ni, Fe, Co, Mn. Single crystals are pulled from melt as in the Stepanov method and quenched by rapid cooling to prevent selective precipitation of individual elemental components. Conventional methods of finishing are used: milling, turning, electro-discharge machining, abrasion. Fields of application include aerospace, military, automotive, medical devices, microelectronics, and consumer products.

公开(公告)号：US20080075557A1

公开(公告)日：2008-03-27

申请号：US11526138

申请日：2006-09-22

Applicant: A. David Johnson ,  Michael Bokaie ,  Valery Martynov

Inventor： A. David Johnson ,  Michael Bokaie ,  Valery Martynov

IPC: F16B35/00

CPC classification number: F16B1/0014 ,  F16B31/04 ,  F16B35/041

Abstract: Devices and methods for making fasteners, such as bolts, having one or more components made of single crystal shape memory alloy capable of large recoverable distortions, and in particular having a plateau in the stress-strain relationship. A constant load is applied by a bolt that is tightened until the force exerted by the bolt is equal to the stress multiplied by the cross-section of a tension component in the bolt. Increasing or decreasing the length of the tension component by as much as several percent causes a negligible change in the load.

Abstract translation: 用于制造紧固件的装置和方法，例如螺栓，其具有由具有大的可恢复变形的单晶形状记忆合金制成的一个或多个部件，并且特别是具有应力 - 应变关系的平台。 通过拧紧的螺栓施加恒定载荷，直到由螺栓施加的力等于应力乘以螺栓中的张力分量的横截面。 将张力分量的长度增加或减少多达百分之几会导致负载变化微乎其微。

公开(公告)号：US07040323B1

公开(公告)日：2006-05-09

申请号：US10638282

申请日：2003-08-07

Applicant: Leticia Menchaca ,  A. David Johnson ,  Vikas Gupta ,  Valery Martynov

Inventor： Leticia Menchaca ,  A. David Johnson ,  Vikas Gupta ,  Valery Martynov

IPC: A61F6/06

CPC classification number: A61F6/14

Abstract: Contraceptive intrauterine devices made of thin film shape memory alloy materials. The devices are formed in three-dimensional shapes which contact uterus tissue of a human or other mammal to prevent conception. In certain embodiments, structural features such as tails, fenestrations, ridges or grooves are formed on the devices to enhance the contraceptive effect.

公开(公告)号：US06955187B1

公开(公告)日：2005-10-18

申请号：US10623139

申请日：2003-07-16

Applicant: A. David Johnson

Inventor： A. David Johnson

IPC: E03B1/00 ,  F16K3/26 ,  F16K31/00 ,  F16K31/02 ,  H01M2/12 ,  H01M12/06

CPC classification number: H01M2/1276 ,  F16K3/26 ,  F16K31/003 ,  F16K31/025 ,  H01M2/1252 ,  H01M12/06 ,  Y10T137/86759

Abstract: A zinc-air battery and control valve for controlling air flow to energize the battery. Telescoping inner and outer valve sleeves each have a plurality of openings that when aligned communicate air from the exterior to the interior of the valve. Two actuators are provided, one to open the valve and the other to close it. All of the openings are opened or closed simultaneously by sliding motion of the valve sleeves that fit concentrically together. A bistable latching mechanism is provided to keep the valve in either of its two positions. A pair of switches operate in coordination with the latching mechanism so that a closed circuit is established for changing the state from that which was last established.

Abstract translation: 用于控制空气流动以使电池通电的锌 - 空气电池和控制阀。 伸缩内套管和外阀套每个都具有多个开口，当对准时将空气从外部传递到阀的内部。 提供两个执行器，一个用于打开阀门，另一个用于关闭阀门。 所有的开口通过同心地配合在一起的阀套的滑动运动同时打开或关闭。 提供双稳态闭锁机构以将阀保持在其两个位置中的任一位置。 一对开关与闩锁机构协调工作，从而建立一个闭合电路，用于将状态从最后建立状态改变。

公开(公告)号：US5903099A

公开(公告)日：1999-05-11

申请号：US862649

申请日：1997-05-23

Applicant: A. David Johnson ,  Heinz H. Busta ,  Ronald S. Nowicki

Inventor： A. David Johnson ,  Heinz H. Busta ,  Ronald S. Nowicki

IPC: H01J9/18 ,  H01J9/24 ,  H01J29/02 ,  H01J29/86 ,  H01J31/12

CPC classification number: H01J9/242 ,  H01J29/864 ,  H01J31/123 ,  H01J2329/8625

Abstract: A fabrication system and method of fabrication for producing microelectromechanical devices such as field-effect displays using thin-film technology. A spacer is carried at its proximal end on the surface of a substrate having field-effect emitters with the spacer being enabled for tilting movement from a nested position to a deployed position which is orthogonal to the plane of the substrate. An actuator is formed with one end connected with the substrate and another end connected with spacer. The actuator is made of a shape memory alloy material which contracts when heated through the material's phase-change transition temperature. Contraction of the actuator exerts a pulling force on the spacer which is tilted to the deployed position. A plurality of the spacers are distributed over the area of the display. A glass plate having a phosphor-coated surface is fitted over the distal ends of the deployed spacer.

Abstract translation: 用于制造微机电装置的制造系统和制造方法，例如使用薄膜技术的场效应显示器。 间隔件在其近端处被承载在具有场效应发射器的基板的表面上，其中间隔件能够使其从嵌套位置倾斜到与基板的平面正交的展开位置。 致动器形成有一端与衬底连接，另一端与间隔件连接。 致动器由形状记忆合金材料制成，其在通过材料的相变转变温度加热时收缩。 致动器的收缩力对间隔件施加拉力，该拉力倾斜到展开位置。 多个间隔件分布在显示器的区域上。 具有磷光体涂覆表面的玻璃板装配在展开间隔物的远端上。